April 2020
Intermediate to advanced
292 pages
6h 50m
English
Content preview from Practical MicroservicesBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Getting Idempotent with It
If you were casually reading along up to this point, this is a heads-up that what we’re about to say is possibly the most important topic when working with microservices. We’re going to talk about idempotence.
The word “idempotence” literally means “same power,”[37] and the idea is that if a function is idempotent, there are only two states that matter—it having been called zero times, and it having been called one or more times. Additional calls have no additional side effects.
This is as important to microservices as oxygen is to you, dear reader. Messaging. Systems. Fail. You will see the same message more than once, and it is physically impossible to guarantee exactly-once delivery. As software developers, we build ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.